Patent · US Expired

Pixel matrix filter

US5638310A · kind A · utility

3Cited by
5References
39Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 21, 1995
Grant dateJun 10, 1997
Priority date
Expiry dateMar 21, 2015

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N19/80
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A pixel matrix filter includes n input buses to receive pixels of n successive columns of the matrix; n delay circuits respectively receiving the pixels from the n input buses, each of these delay circuits introducing a delay of one column, whereby 2n pixels are simultaneously transmitted to the outputs of the n delay circuits and to the n input buses, successively; and n adders connected at least so that the i-th adder receives the i-th of the 2n pixels at a first input and the (i+1)th of the 2n pixels at a second input.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.